| Block | Treat | Outcome |
|---|---|---|
| 1 | 0 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
| 2 | 0 | 0 |
| 2 | 0 | 0 |
| 2 | 0 | 1 |
| 2 | 1 | 0 |
| 2 | 1 | 1 |
| 2 | 1 | 1 |
Declare a simple design in which
Show that this can generate biased results. Can you find situations where the bias can be either positive or negative?
| Block | Treat | Outcome |
|---|---|---|
| 1 | 0 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
| 2 | 0 | 0 |
| 2 | 0 | 0 |
| 2 | 0 | 1 |
| 2 | 1 | 0 |
| 2 | 1 | 1 |
| 2 | 1 | 1 |
Research design diagnosis based on 2 simulations. Diagnosis completed in 0 secs. Diagnosand estimates with bootstrapped standard errors in parentheses (100 replicates).
Design Inquiry Estimator Outcome Term N Sims Bias SD Estimate Mean Se
design ATE FE Y Z 2 -0.02 0.00 0.35
(0.00) (0.00) (0.00)
design ATE IPW Y Z 2 -0.00 0.00 0.32
(0.00) (0.00) (0.00)
design ATE lin Y Z 2 0.00 0.00 0.31
(0.00) (0.00) (0.00)